/* Copyright  2009
   @Author
   Richard Changde Yin            e-mail yinchangde@hotmail.com

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; version 2 of the License.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
   
/**
 * @filename: hex_string.h
 */ 

#ifndef COLLAPSAR_ITEM_HEX_STRING_H
#define COLLAPSAR_ITEM_HEX_STRING_H

#include <item/basic_constant.h>

class Item_hex_string: public Item_basic_constant
{
public:
  Item_hex_string() {}
  
  Item_hex_string(const char *str,uint32_t str_length);
  
  enum Type type() const { return VARBIN_ITEM; }
  
  double val_real()
  {
    assert(fixed == 1);
    return (double) (uint64_t) Item_hex_string::val_int();
  }
  int64_t val_int();
  
  bool basic_const_item() const { return 1; }
  
  String *val_str(String*) { assert(fixed == 1); return &str_value; }
  
  my_decimal *val_decimal(my_decimal *);
  
  int save_in_field(Field *field, bool no_conversions);
  
  enum Item_result result_type () const { return STRING_RESULT; }
  
  enum Item_result cast_to_int_type() const { return INT_RESULT; }
  
  enum_field_types field_type() const { return COLLAPSAR_TYPE_VARCHAR; }
  
  virtual void print(String *str, enum_query_type query_type);
  
  bool eq(const Item *item, bool binary_cmp) const;
  
  virtual Item *safe_charset_converter(const CHARSET_INFO * const tocs);
  
  bool check_vcol_func_processor(unsigned char *)
                                                { return false; }
};


#endif /* COLLAPSAR_ITEM_HEX_STRING_H */
